Mitochondrial evidence for distinct phylogeographic units in the endangered Malagasy poison frog<i>Mantella bernhardi</i>

Vieites, David R.; Chiari, Ylenia; Vences, Miguel; Andreone, Franco; Rabemananjara, Falitiana; Bora, Parfait; Nieto-Román, Sandra; Meyer, Axel

doi:10.1111/j.1365-294x.2006.02874.x

Cited by 29 publications

(25 citation statements)

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“…Further study is also necessary to assign the Mantella population of BMNP, although Rabemananjara et al (2007) have shown that Mantella baroni is a genetically very uniform species, with identical haplotypes distributed over much of its distribution area including specimens from Andringitra that show extended yellow-greenish dorsal colouration. In line with several studies indicating that the south-eastern part of Madagascar is undersampled (Raxworthy et al, 2003) and contains genetically highly divergent phylogeographic lineages (Vieites et al, 2006), our study supports the need of more intensive herpetological survey work in this region, which should be carried out in concert with taxonomic study of the encountered populations. …”

Section: Discussionsupporting

confidence: 87%

A rapid assessment survey of the herpetofauna at Befotaka-Midongy National Park, south-eastern Madagascar

et al. 2007

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We report on the results of a herpetological rapid assessment survey in the Befotaka-Midongy National Park in south-eastern Madagascar, carried out between 25 September and 17 October 2005. The survey yielded a total 46 species (30 amphibians and 16 reptiles). Of the two surveyed sites, both characterized by rainforest habitat and situated at elevations of 600--900 m, Kilimagnarivo was richer in species diversity than the second site, Rozabe. Seven species were only recorded from Rozabe whereas 14 species were only recorded from Kilimagnarivo. Among the remarkable discoveries was the frog Gephyromantis spinifer, which constitutes a significant range extension for this species. The same is true for Gephyromantis tschenki which was hitherto only known from the Ranomafana region. One specimen assigned to the arboreal snake Stenophis cf. carleti had a number of ventral and subcaudal scales intermediate between S. gaimardi and S. carleti, indicating that the taxonomic definition of S. carleti is insufficient. The reported herpetofaunal diversity appears low if compared to other sites in the same region (e.g., Ranomafana National Park) but considering the unfavourable period of the survey in the austral winter, and taking into account the results of other teams who also have surveyed sites in the Befotaka-Midongy region, we assume a high species diversity in Midongy National Park. ResumeUn inventaire rapide a é té effectué dans le Parc National de Befotaka-Midongy, dans la partie sud-est de Madagascar, pour but de connaître la composition herpetologique de la ré serve, du 25 septembre au 17 octobre 2005. Un total de 46 espè ces est inventorié dont 30 amphibiens et 16 reptiles. Cet inventaire a permis de constater que le site de Kilimagnarivo est beaucoup plus riche en espè ce et plus diversifié que celui du site de Rozabe. En effet, 7 espè ces sont propres de Rozabe tandis que 14 autres ne sont trouvé es qu'à Kilimagnarivo. Entre les dé couvertes remarquables, il faut mentionner la grenouille Gephyromantis spinifer, sa localisation en Midongy constitue un é largissement important de son aire de ré partition. La meme est vrai pour Gephyromantis tschenki, jusque'a maintenant seulement connue de la region de Ranomafana. Un serpent arboricole attribué à l'espè ce Stenophis cf. carleti à un nombre d'é cailles ventrales intermediaire entre S. carleti and S. gaimardi, ceci confirme que S. carleti est insuffisant definié. La diversité herpé tofaunique trouvé e est faible par rapport aux autres sites dans la mem ré gion (par example le Parc National de Ranomafana). Mais, elle est é levé e si l'on tient compte de la pé riode d'inventaire qui n'est pas favorable aux animaux en particulier les amphibiens et reptiles et les ré sultats des autres chercheurs qui ont é galement travaillé dans la zone de Befotaka-Midongy autres que les sites é tudié s dans notre travail.

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Section: Discussionsupporting

confidence: 87%

A rapid assessment survey of the herpetofauna at Befotaka-Midongy National Park, south-eastern Madagascar

et al. 2007

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“…Although some species like Hemidactylus do not show distinctive clades in the South East, in others, like P. lineata, C. crypticum, and possibly F. lateralis, there is a clear differentiation between samples north and south of the Mananara river. The data shown here, together with studies available for several groups of vertebrates that inhabit this region in Madagascar (Goodman and Ganzhorn, 2004;Louis et al, 2005;Sterling and Ramarason, 1996;Vieites et al, 2006) make it plausible that these two east coast rivers act as barriers. More samples, particularly from localities close to the north and south banks of the Mangoro and Mananara rivers, are needed to test this hypothesis.…”

Section: Comparative Phylogeographymentioning

confidence: 61%

Geographical patterns of deep mitochondrial differentiation in widespread Malagasy reptiles

Boumans

Vieites

Glaw

et al. 2007

Molecular Phylogenetics and Evolution

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This article was published in an Elsevier journal. The attached copy is furnished to the author for non-commercial research and education use, including for instruction at the author's institution, sharing with colleagues and providing to institution administration.Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited. AbstractUsing sequences of the mitochondrial 16S rRNA gene, we reconstructed the phylogeography of six widely distributed Malagasy reptiles: two gekkonid lizard species, Phelsuma lineata and Hemidactylus mercatorius; two chameleons, the Calumma brevicorne complex, and Furcifer lateralis; and two skinks, Trachylepis gravenhorstii and Trachylepis elegans. Genetic differentiation among major haplotype lineages was high and in some cases indicates or confirms species status of the divergent populations. Maximum uncorrected sequence divergences were between 2.2% and 8.3% within the various species or species complexes. Haplotype lineages were exclusive to geographic regions, except in the commensal H. mercatorius where in three anthropogenic habitats coexistence of haplotype lineages was observed, possibly due to human translocation. The eastward flowing rivers Mangoro and Mananara may represent barriers to gene flow in the case of three species each. Some species sampled from humid eastern and arid western Madagascar showed no differentiation between populations from these two regions; instead the pattern observed was in several cases more concordant with a differentiation along a north-south axis.

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“…The endangered M. bernhardi occurs in two separate regions in south-east Madagascar. Cytb sequence comparisons of individuals from across the entire range confirmed the genetic separation (reciprocal monophyly) of the two groups and provided evidence of barriers to gene flow (probably rivers) predating the recent habitat destruction mediated by humans (Vieites et al, 2006).…”

Section: Zeisset and Tjc Beebeementioning

confidence: 94%

Amphibian phylogeography: a model for understanding historical aspects of species distributions

2008

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Phylogeographic analysis has become a major tool for investigating historical aspects of biogeography and population genetic structure. Anuran amphibians are particularly informative subjects for phylogeographic research on account of their global distribution, high degree of population genetic structure and ease of sampling. Studies on all the world's inhabited continents have demonstrated the nature and locations of refugia, including the Gulf Coast in North America and the Mediterranean peninsulas in Europe during the Pleistocene glaciations; the importance of vicariance events such as the uplift of the Andes in shaping modern distributions; and colonization routes in temperate zones during postglacial climatic amelioration. Features identified as important to amphibian biogeography, notably mountain ranges, large rivers such as the Amazon and climatic fluctuations, are common to many other taxa. New analytical methods based on coalescent, Bayesian and likelihood approaches permit more rigorous hypothesis testing than has hitherto been possible and offer the prospect of even more detailed insights into species and population history in future work.

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Mitochondrial evidence for distinct phylogeographic units in the endangered Malagasy poison frogMantella bernhardi

Abstract: Abstract

Cited by 29 publications

References 71 publications

A rapid assessment survey of the herpetofauna at Befotaka-Midongy National Park, south-eastern Madagascar

A rapid assessment survey of the herpetofauna at Befotaka-Midongy National Park, south-eastern Madagascar

Geographical patterns of deep mitochondrial differentiation in widespread Malagasy reptiles

Amphibian phylogeography: a model for understanding historical aspects of species distributions

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